Guayusa is a plant native to the Amazon rainforest, whose scientific name is Ilex guayusa. Its cultivation is mainly concentrated in Ecuador, which is the largest producer worldwide. This plant is known for its energizing and antioxidant properties. It is a natural source of vitamins C and D, and provides essential minerals such as magnesium, calcium, zinc, and potassium. One of its most notable compounds is theobromine — also present in cocoa — which promotes concentration and naturally improves mood. Guayusa contains 50% more antioxidants than green tea, making it an excellent ally for combating oxidative stress and promoting cellular health. Currently, scientific research is being conducted to explore its potential applications in the food and medicinal fields, including anti-inflammatory and antibacterial properties.